Apparatus for and method of making containers



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R AND AK File d Jan. 15, 1936 Y 7 Sheets-Sheet 1 EM 51775 5 f1?!te/ffi/f/myy.

June 4, w. E. AMBERG 2,203,513

APPARATUS FOR AND METHOD OF MAKING CONTAINERS Filed Jan. 15, 1936 7sheets sheet 2 June 4, 1940. w AMBERG 2,203,513

APPARATUS FOR AND ammo OF MAKING cormmnns Filed Jan. 15. 1936 "1Sheets-Sheet s June 4, 1940. w. E. AMBERG' APPARATUS FOR AKD' METHOD OFMAKING CONTAINERS '7 Sheets-Sheet 4 FiIed' Jan. 15, 1936 June 4, 1940.w. E, AMBERG 2,203,513

APPARATUS FOR AND METHOD OF MAKING CONTAINERS Filed Jan. 15, 1956 7Sheets-Sheet 5 50 Z 1 E g. l9

June 4, 1940. w. E. AMBERG 2,203,513

APPARATUS FOR AND ammo OF MAKING conummns Filed Jan. 15, 1956. 7Sheets-Sheet 6 1. ML 66 1 [Mull]: /6 /35 171 1 5 170 June 4, 1940. w. E.AMBERG 2,203,513

APPARATUS FOR AND METHOD OF MAKING CONTAINERS Filed Jan. 15, 1956 7Sheets-Sheet 1 Patented June 4, 1940 UNITED STATES PATENT OFFICEAPPARATUS FOR AND METHOD OF MAKING CONTAINERS Application January 15,1936, Serial No. 59,218

41 Claims.

This invention relates to improvements in apparatus for makingcontainers, and also to a new and novel method of making the same, theinvention being highly desirable for use in connection with themanufacture of drinking and confection cups of paper or similarmaterial, the cups being of the character discarded after a singleusage, although the invention will have other uses and purposes, as willbe apparent to one skilled in the art.

In the manufacture of containers of paper or similar material, such aspaper drinking or ice cream cups, economy is one of the essentials.Economy is determined by several different factors, among which are thespeed of producing containers, number of operations necessary to form acontainer, and the amount of stock or material which must be wastedduring the manufacture of a container. Another factor is the efficiencyof operation of the container making apparatus, particularly withrespect to the continuity of a run without a jamming of the paper stockor the production of improperly formed containers. Of course, accuratetiming of the various operating parts is necessary and the paper stockmust be prevented from varying from its prescribed courseof travel bothbefore and after cutting of the blanks from the stock.

With the foregoing in mind, it is an important object of this-inventionto provide a containermaking machine which is compact and simple inconstruction, economical to manufacture, and capable of operating at arelatively high speed.

Another object of the invention is the provision of a container-makingwherein a continuous sheet of paper stock is fed directly to thecontainer-forming elements as distinguished from the other individualmechanisms embodied in the machine.

It is also an object of this invention to provide a container-makingmachine wherein container blanks are cut from a continuous sheet ofmaterial, the cutting of each blank occurring contemporaneously with theend of the sheet being grabbed by the container-forming elements.

It is also a feature of this invention to provide a container-formingmachine wherein a single sheet of stock is continuously fed to themachine and directly into engagement with the forming elements,contemporaneously with the cutting of the individual blanks from thesheet.

A further feature of the invention resides in the provision of acontainer-making machine wherein a strip of stock is continuously fedinto the machine, glue applied thereto, the stock being fed directlythrough the forming elements, a blank cut from the stock rearwardly ofthe forming elements, a container formed and ejected from said elementsin time for the approaching edge of the stock sheet to be picked up bysaid elements.

It is a further object of this invention to provide a machine of thecharacter set forth herein which need embody only a single pair of feedrolls between and by which the stock may be advanced or moved throughthe machine.

It is also an object of the invention to provide a novelcontainer-receiving mechanism for use in conjunction with a machine ofthe character described herein.

Another aim of the invention is the provision of a machine of thecharacter described which minimizes the stock waste in the making of acontainer.

A further object of the invention is the provision of a new and novelmethod of making a container.

While some of the more salient features, characteristics and advantagesof the present invention have been above pointed out, others will becomeapparent from the following disclosures taken in conjunction with theaccompanying drawings, in which:

Figure 1 is a fragmentary side elevational view, with parts omitted, ofa machine embodying principles of the present invention, illustratingmore specifically the general drive of the machine.

Figure 2 is an enlarged fragmentary top plan view of the machine.

Figure 3 is an enlarged fragmentary vertical sectional view,illustrating the container forming unit and trimming cutter, takensubstantially as indicated by the line III-III of Figure 2, with thetrimming cutter appearing below the section line of Figure 2theoretically rotated 90 degrees so that it may be shown in section inFigure 3.

Figure 4 is an enlarged fragmentary sectional view through the formingmandrel, taken substantially as indicated by the line IV-IV of Figure 3.

Figure 5 is a transverse vertical sectional view through the structureof Figure 4, taken substantially as indicated by the line V-V of Figure4.

Figure 6 is an enlarged fragmentary vertical sectional view, takensubstantially as indicated by the line VI-VI of Figure 2.

Figure 7 is substantially a diagrammatic plan view of the die or platecutter in the bed of the machine.

Figure 8 is a diagrammatic plan view of the movable cutting knifeoperating in conJunction with the structure of Fig. 7.

Figure 9 is an enlarged fragmentary vertical sectional view, takensubstantially as indicated by the line 13-43 of Figure 2, illustratingthe receiving mechanism for the finished containers.

Figure 10 is a fragmentary plan view of the structure shown in Figure 9.

Figure 11 isa fragmentary vertical sectional view, taken substantiallyas indicated by the line XI-XI of Fi ure 10.

Figure 12 is an enlarged fragmentary vertical sectional viewillustrating the air and vacuum control means, taken substantially asindicated by the line XIII-XII of Figure 2.

Figure 13 is a fragmentary plan sectional view, taken substantially asindicated by the staggered section line XIII-XIII of Figure 12.

Figure 14 is a fragmentary transverse vertical sectional view, takensubstantially as indicated by the line X[VX[V of Figure 13.

Figure 15 is a diagrammatic view illustrating the initial steps in themaking of a container.

Figure 16 is a somewhat imaginary view, illustrating a further step inthe making of a container and showing how the container would appear ifcompletely formed before the excess shock was trimmed from around themouth of the container.

Figure 1'7 is a view in elevation of the finished container;

Figure 18 is a plan view of the finished container.

As shown on the drawings:

In the illustrated embodiment of this invention, a machine isshown anddescribed capable of making a container in the form of a paper drinkingcup, or ice cream cup, of conical shape, the container being made from asingle blank of stock. While the completed container is of substantiallytrue conical shape and is illustrated with no special formationstherein, it will be understood that by equipping the machine withsuitable forming dies or similar mechanism to add a further operation tothe making of the container, the apex of the conical container may beblunted or otherwise shaped, and a downwardly turned drinking rim may beprovided around the mouth of the container, if so desired. It will befurther appreciated that the invention is not strictly limited to themakingof a paper drinking cup of conical form, but diflerent shapes andstyles of containers may be provided with the use of differently shapedforming mandrels and dies.

TH]: Mlrrnon m Gunman.

Briefly, the method of making a container as embodied in the presentinvention includes the continuous feeding of a strip or sheet of stockdirectly'to the container forming elements. During the course of itstravel, spaced patches of adhesive are provided on the sheet of stock,and contemporaneously with the forward end of the sheet being gripped bythe forming elements, a blank is cut from the sheet. This blank isformed into a container by the forming elements, after which it isejected into a container-receiving mechanism, in time for the formingelements to grip the approaching edge of the stock sheetcontemporaneously with the cutting of the next blank. During thisprocedure, the feeding of the stock sheet is not interrupted.

The general steps of the method are best illus-'- trated in Figures 15,16, 17 and 18. In these figures, the stock sheet, blank and container,respectively, are illustrated in full lines. while the various operatingunits co-jointly making up the machine are illustrated diagrammaticallyin dotted lines.

An indefinitely long strip I of stock from any,

suitable source, such as a roll I (Figure 1), is continuously advancedby a feeding unit generally indicated by numeral I. 'Ihe stock ispreferably a paper of the general character suitable for paper drinkingcups, ice cream cups and the like, and it may be rendered liquid-proofto a desired extent either initiallyor after the forming of thecontainer, as may be deemed most feasible.

During the course of its travel, in this instance prior to the feedingmechanism I, a gluing unit generally indicated by numeral I, appliesspaced dabs or patches of glue I to the strip I. Continuing its sourceof travel, the forward edge of the strip is eventually gripped by aforming unit generally indicated by numeral I. Preferably very shortlybefore the edge of the strip is gripped, a cutting unit generallyindicated by numeral I severs a blank I from the strip, the cuttingoperation being relatively quick and sharp so as not to interfere withthe continuous feed of the strip. The line of cut is such as to includea rearwardly extending diagonal part I terminating at one end of aforwardly extending arcuate part III. This form of cut provides a tab IIon the forward end of the blank which is wound around the apex of thecup after the same is formed.

The forming unit I preferably does not stop motion during any part ofthe operation, and accordingly the relative units of the machine must beproperly timed, since certain of these units operate at a faster speedthan do the others.

whereupon the severed blank I is wound around a mandrel in the formingunit to provide a conical cup I2.

During the winding of the blank into cup form, the surplus edge portionII of the blank is trimmed along'a line indicated at II by a trimmingunit II. To this extent, Figure 16 is imaginary in that it discloses aformed cup having the excess marginal portion II thereupon, but thisexcess marginal portion is trimmed off during the forming of the blankinto cup shape, in the preferable embodiment of the machine.

It will be noted that the trimming line II terminates substantially inthe middle or in an intermediate portion of the arcuate part II of theline or cut so that a part of this arcuate cut II will appear in thefinished cup as seen in Figure 1'1 in such a location as not tointerfere with or lessen the capacity of the cup. ,In the finished cup,marginal portions of the blank are overlapped, as indicated at I I inFigures 1'! and 18, and one of these overlapped marginal portionscarries the aforesaid patch of adhesive I which adheres to the othermargin to hold the cup in shape. A suitable heating element ispreferably disposed beneath the forming unit so that during the formingand immediately before the cup is ejected from the forming unit, the'adhmive will be subjected to heat so as to dry sufiicientlyrapidly forhigh speed production, since each cup is formed and discharged in timefor the forming unit 9 to pick up the forward edge of the approachingstock strip I.

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With reference especially to Figures 1 and 2, it will be seen that themachine includes a suitable frame I! having a bed foundation I9thereupon and including a lower deck 29. On the bed foundation I9, a bedplate 2I is disposed at one side of the course of travel of the strip I.Adjacent thebed plate 2I, a pair of complemental vertically extendingside plates 22 having laterally extending base flanges bolted to the bedfoundation I9, roughly define the course of travel for the stock strip I(Figures 2 and 6).

Disposed adjacent the frame It of the machine (Figure 1), is a cradle 23for carrying the aforesaid stock roll 2, this cradle carrying a pivotallever 24 having a free roll 25 on the outer end there of to act as atensioning member for the strip I. Adjacent the upper portion thereof.the frame II also carries a laterally extending arm 28 equipped with afree guiding roll over which the strip I passes so that the strip willenter the working parts of the machine at the proper angle.

Mounted on the deck 29 of the frame is a main drive unit, such as anelectric motor 21, connected by a belt 28 to a main drive pulley 29carried on a transversely extending shaft 30 journaled as at M in Figure2. Also carried on the shaft 99 is a gear 32 indirectly driving a pinion32 disposed obliquely therebeneath and carried on a stub shaft 34through a pinion 930 on a stub shaft 341:, both stub shafts beingjournaled in the bed foundation I9. This stub shaft 34 carries asprocket wheel 35 connected through a suitable chain 36 to drive anothersprocket wheel 31 carried on a shaft 38 suitably joumaled in anupstanding bearing bracket 99. This arrangement is preferably such thatthe sprocket wheel 31 together with its shaft 38 will be driven at fourrevolutions to one of the drive pulley 29, this being a highlysatisfactory operating ratio.

Caried by a pair of spaced supporting arms 40 projecting rearwardly fromthe bed foundation I9 is the aforesaid gluing mechanism generallyindicated by numeral 4.

The. feeding mechanism, generally indicated by numeral 9, is carried bythe side plates 22. A blank cutting mechanism, generally indicated bynumeral 1, is also carried by the side plates 22.

As seen best in Figure 2, a bracket H is bolted to the bed plate 2| andis provided with a pair of spaced supporting arms 42 extending obliquelyupwardly in position to support the aforesaid container-formingmechanism generally indicated by numeral 5. Between these arms, abearing bracket 49 extends outwardly in position to support shafting tobe later described in connection with the forming mechanism, thisbearing bracket 43 being bolted to a depending front face 44 of thebracket 4| (Figures 2 and 3). The spaced arms 42 also carry theaforesaid trimming mechanism generally indicated by numeral II.

Mounted on the bed plate 2I in advance of the bracket H is an air andvacuum control mechanism generally indicated by numeral 45, which willbe further described later herein.

Mounted on the side of the machine frame and disposed directly oppositethe container-forming mechanism 5 is a container-receiving unitgenerally indicated by numeral 46 to be further described herein.

The stock-feeding With reference particularly to Figures 2 and 6, itwill be seen that the feed mechanism for the present invention need onlyembody a single pair of feeding rolls, an upper roll 41 carried on theaforesaid shaft 99 driven by the main drive pulley 29, and a lower feedroll 49 carried on a shaft 49. Outside the track defined by the two sideplates 22, the shaft 99 also carries a gear 59 which is meshed with asimilar gear 5| carried by the shaft 49, whereby the lower feed roll isdriven by the shaft ill but in the opposite direction.

Each of the side plates 22 is apertured as at 52 to accommodate afloating bearing 59, in which bearings the shaft 49 is journaled. A studbolt 54 extending vertically through the respective side plates beneaththe openings 52 has a spring 55 associated with its inner end in anadjustable manner, these springs supporting the floating bearings 53 andproviding suitable pressure for the proper feeding of the strip Ithrough the machine. Of course, the springs may be adjusted in anobvious manner to vary this pressure, as may be required.

The gluing mechanism The gluing mechanism is best seen in Figures 2 and6. I In this instance, the mechanism includes a glue container 59 havinga removable cover and supported by the aforesaid arms 49. The'forwardwall of the glue box 56 is sloping and the stock strip I passes upwardlybeneath this wall from the aforesaid guide roller carried on the arm 26(Figure 1) Adjacent the forward end of the glue box and therebeneath isa suitable heater 51, which preferably contains an electric heatingelement and which may be secured to the frame of the machine in anydesirable manner. This heater maintains the glue in the box 56 in asuitable molten state for application to the stock strip I.

Inside the glue box is a transverse shaft 59 journaled in the side wallsof, the box. This shaft carries a glue-dipping wheel 59 thereon having apair of opposed transversely arcuate slots 60 therein. The dipping wheel59 extends through a suitable slot in the cover of the glue box inposition to directly contact a glue applying wheel 6| of substantiallyidentical construction. The opposed slots 50 in the applying wheel 5|are so arranged as to coincide with the slots 50 in the dipping wheel59, so that in the region of these slots no glue will be picked up bythe dipping wheel and consequently no glue transferred to the applyingwheel. Of course, the applying wheel contacts the stock strip I passingthereby and applies the aforesaid patches 5 of glue (Figure 15) to thestock strip, the arcuate form of the slots 50 in both the wheels 59 andBI providing the arcuate forward and rear edges on the patches 5.

The applying wheel SI is mounted on a transverse shaft 62 journaled insuitable bushings projecting from the side plates 22. Outside the gluebox, the shaft 58 carries a gear 92 which meshes with a similar gear 64carried by the shaft 52 outside the respective side plates 22, wherebythe shaft 58 is driven by the shaft 52. The shaft 52 is driven by themain drive pulley 29 through the shaft 39 by means of a sprocket wheel95 carried on the shaft 30 and connected by means of a suitable chain 55to another and larger sprocket wheel 61 carried on the end of the shaft62.

To properly position the stock strip I for the application of the glue,a transverse freely rotatable guide roll 88 is provided, this guide rollbeing mounted upon a shaft 68 journaled in the side plates 22. It willbe noted that the shaft 88 is disposed higher than the contact points ofthe feeding rolls 4! and 48, so that the stock strip is made to continueits obliquely upward line of travel until after the glue patches 5 havebeen applied thereto.

Preferably, a suitable backing is provided for the applying wheel II. Inthis instance, a fixed pivot shaft 18 (Figure 6) is secured to one ofthe side plates 22 in any suitable manner. An arm II is pivotalrelatively to the shaft 18 and may .be fixed in any position ofadjustment by means of a set screw 12 engaging the shaft to the arm. Onits lower end, the arm ll carries a free roller ",jud the stock strip Imust pass between this roller and the glue applying wheel 5i. Adjacent,

the arm II, a boss ll isprovidedon the respective 20 side plates 22,which boss contains an adjustable pin 18 to prevent the raising of thearm ll beyond a predetermined point. In the event one of the slots il inthe face of the applying wheel 6| is positioned adjacent the roller 18when it is desired :5 to feed a new strip of stock through the machine,

the pin Ii effectively prevents an operator from raising the roller 13too far and breaking the stock strip inside the notch in a slot 88.

As stated hereinabove, the entire feeding of the stock strip isaccomplished by the aforesaid feed rolls 1 and 48, and since the gluepatches 5 are applied to the stock strip in advance of these feedingrolls, the upper roll 41 is stepped down or reduced, as indicated at Ii,so as not to contact the stock strip in that region carrying the gluepatches 8.-

The blank-cutting mechanism With reference to Figures 2, 6, 7, 8 and 9,itv

will be seen that the cutting mechanism is supported by a transverseyoke or plate 11 bolted to the upper edges of the side plates 22. Asseen in Figure 6, each of these side plates is shaped as indicated at 18to provide a track in which a cutter carrier 18 is verticallyreciprocable. A pair of elongated bolts 88 are threaded engaged in theupper end of the carrier and extend freely through suitable apertures inthe yoke 11. Between the head of each of these bolts and the uppersurface of the yoke Tl, a coil spring 8| is positioned, and thesesprings normally hold the carrier 18 in its uppermost position.

On the lower end thereof, the carrier 19 is provided with an enlargedhead 82 to the under'face of which is attached a knife 83 positioned asseen in Figure 8 relatively to the stock strip I. This knife is providedwith a straight cutting edge 9a disposed rearwardly obliquely to thestock strip, and an arcuate cutting edge lid to provide a line of cut asdefined hereinafter in connection with the showing in Figure 15. Therear edge of the knife is preferably beveled as at 84 to provide a sharpcutting edge. on the underface thereof, the forward portion of the knifeis preferably upwardly beveled as indicated at 85 (Fig. 6), so that onlya single cutting line is provided for contact with the stock strip l.

Of course, an understructure must be provided to work in conjunctionwith the knife 83. This structure includes a pad member 88 disposed uponthe bed foundation l8 and bolted to the side plates 22. Mounted upon thepad member 88 in any suitable manner is a bed plate 81. A pair of dies88 and 88 are bolted to the bed plate 81 as indicated at 88 (Figure 7),and these two members together define a cutting edge similar,

to that upon the knife 88. The forward edges of the elements 88 and 88are rearwardly beveled as indicated at 9| in Figure 6. The die member 88is dovetailed in the bed plate 81 as indicated at 82, and immediatelyadjacent the dovetail connection, a pair of bolts 93 are firmly securedin position, the shanks of these bolts abutting the rear edge of the die88 so that a very fine adjustment of the die may be made relatively tothe bolts 90 upon the loosening of the bolts 93.

The structure for reciprocating the cutter carrier 18 includes atransverse shaft ll journaled in the side plates 22. Connected to eachend of this shaft outside the respective side plates is a crank arm 85carrying a roller 86 on the free end thereof. Each of the rollers 98rides upon the surface of a cam 81 which is preferably cylindrical inform with the exception of a relatively narraw hump 88 projectingtherefrom. The dam members are carried by the aforesaid shaft 38. Oneach side thereof, the carrier 18 is provided with a pair of outwardlyextending lugs 99, shown in dotted lines in Figure 6, and between theselugs is an operating element I08 carried by the respective crank arm 85.

It will thus be seen that when the cam projection 88 elevates the freeend of the crank arm 95, and due to the narrowness of the projection 88this elevation is substantially momentary, the carrier 18 is loweredcausing the knife 83 to sever a blank from the forward end of thetraveling stock strip l. Due to the speed with which the out is made,the continuous feeding of the stock strip I need not be interrupted. Inorder to prevent the forward edge of the stock strip rising with thereturn movement of the knife 83, a presser member is provided to therear of the knife. This member includes a double headed pin IOI freelymovable in the head 82 of the carrier 19. A spring member I82 seated ina suitable socket in the head 82 urges this pin downwardly at all times.Therefore, upon the cutting stroke, the lower head of the pin willstrike the stock strip together with the cutting knife, but upon thereturn stroke, the cutting knife will reach its elevated position beforethe lower head of the pin leaves the stock strip. Of course, due to itscontinuous feed, the stock strip will buckle momentarily behind thepresser member II, but this buckling will not interfere with theoperation of the machine, the stock strip straightening out in usualform immediately upon the raising of the presser member.

Container-forming mechanism The container-forming mechanism or unit,generally indicated by numeral 6, is best seen in Figures 2, 3, 4 and 5.As explained above, the forming unit is driven through the sprocket 85,the chain 36, the sprocket 81, and shaft 38 (Figure 1). With referenceto Figures 2 and 3, it will be seen that theaforesaid arms 42 and thebracket 4| support a shaft I03, and the shafts I82 and "are connected bya universal joint I, since the shaft I88 is disposed at an angle to theshaft 38. Each of the arms 42 is arranged to accommodate a ball bearingassembly I05 disposed in a bearing housing I I6. On the outer end of theshaft is a forming mandrel Ill.

Beneath the depending apron It on the bracket 4|, another supportingmember I88 is disposed, this supporting member having a pair of arms I88projecting therefrom each arranged to accommodate a ball bearingassembly Ill disposed In a bearing housing III substantially as abovedescribed. These two bearings III adequately journal another shaft II2disposed at an angle to the aforesaid shaft I03, the shaft II2 carryingon its outer end a cone member I I3 which acts as a rider or presserroll in connection with the mandrel II'I, these two elements being sodisposed as to grip the forward end of the stock strip I therebetweenjust prior to the severance of a blank from the strip by the cuttingmechanism I. The shaft H2 and cone II3 are driven by means of a gearII4.keyed to the shaft I03 and a gear Ili keyed to the shaft II2.-'Thesegears are of the same size so that both the mandrel and cone are drivenat the same speed but in opposite directions.

In order to provide the proper pressure between the cone and mandrel,the support I03 is slidably mounted on a main support II3, it being heldin proper position relatively-to the support II3 by means of bolts IIIwhich are engageable in elongated apertures in the plate H3, not shownin the drawings. When the bolts III are loosened, a bolt and lock nutadjustment IIO may be utilized to vary the pressure of the cone againstthe mandrel.

The specific construction of the mandrel I0! is best seen in Figure 4.The body portion of the mandrel is provided with an external elongateddouble slot II3 communicating with an interior transverse bore I closedon the opposite side of the mandrel by a plug I2I. The shaft I03 uponwhich the body portion of the mandrel is threaded is hollow, asindicated at I22, and the bore I23 communicates with the hollow I22 bymeans of a relatively small passage I23 in the shaft. .The rear orlarger end of the mandrel is formed by. means of a hardened steel capI24 bolted to the body portion as indicated at I23, this cap beingprovided with a knife-edge to cooperate with the trimming mechanism I3to be later described.

At the forward end thereof, the mandrel is completed by a conical tipI23 having an elongated-hollow shank l2'l'freely slidable in a sleeveI23 threaded into the body of the mandrel. The rear end of the shank isprovided with a fixed collar I23, and between the collar and the sleevea coil spring I normally urges the tip into tight association with themandrel vbody.

To hold a severed blank in tight association with the mandrel so that itwill twirl therearound, vacuum is provided in the double slot I I! sothat the edge of the stock strip just prior to the severance of a blankis not only engaged between the mandrel and cone, but is also held tothe mandrel by suction. With the continued rotation of the mandrel andcone, the blank immediately after its severance will be wound around themandrel into container form, the respective parts being so timed intheir movement that after a container is completed and ejected from themandrel the double slot H9 will be in position to lie over the edge ofthe stock strip.

With reference to Figure 3, it will be seen that the bracket 43 isprovided with abearing holder I3I containing a pair of bearing membersI32 within which the shaftl03 is rotatable. Inside the holder I3I, theshaft I03 is provided with a transverse aperture I33 adapted forcommunication between the hollow I22 in the shaft and an opening I34 inthe holder. A tube I35 threaded into the holder adjacent said openingprovides communication from the air and vacuum control generallyindicatcd by numeral 45.

In operation, a vacuum is first set up in the tube I 33 and consequentlyin the double slot II! to hold the severed blank on the mandrel. Afterthe blank has been wound around the mandrel and the container formed,compressed air is sent through thetube I33 in lieu of the vacuum, andthis compressed airnot only contacts the interior of the containerthrough the double slot II3, but also forcibly projects the mandrel tipI23 against the action of the spring I30 to provide a positive pushagainst the formed container, and compressed air will also contact thecontainer adjacent the point thereof through lateral passages I33 in themandrel 3. Die container is thus forcibly expelled from the mandrel intothe receiving mechanism 43 to be later described.

, To permit the ready expulsion of the container from the mandrel, thecone H3 is moved rearwardly slightly at the time of expulsion, so thatthe cone H3 is free from engagement with the container. The shaft I I2together with the gear II5 may be moved axially rearwardly relatively tothe bearing IIO. A coil spring "I disposed between the outer bearinghousing III and a bushing assembly I33 in abutment with the gear II5normally urges the cone II3 into engagement with the mandrel I throughthe stock strip. However, at the outer end thereof the shaft H2 isprovided with a collar I33 around which a flange bushing I40'isdisposed. Opposed pins I4I extend into the bushing and these pins areengaged by the forked ends I 42 of a lever I43. With reference to Figure2, it will be seen that this lever is pivoted, as at I44, to a bossextending from the side of one of the arms 42 of the bracket H. Thelever extends rearwardly into engagement with a cam I43 carried by themain drive shaft 30, and a spring I43 holds the lever in engagement withthe cam. The cam is provided at one side thereof with a sloping wall orcam surface which periodically urgesthe rear end of the lever in adirection towards the stock strip, thereby causing the cone shaft II2 tobe retracted and disengaging the cone II 3 from the container formed onthe mandrel, permitting free ejection of the container from the mandrel.

To insure the adequate drying'of the adhesive patches before thecontainer is ejected from the mandrel, a heater I" which may be similarto the aforesaid heater 5'', is disposed adjacent the mandrel I0'I, asseen best in Figure 6.

Trimming mechanism As stated hereinabove, an excess margin of stock isoccurrent on that part of a severed blank forming the mouth or openlarger end of the conical container. 01. course, this excess margin mustbe trimmed from the blank, and this operation preferably occurs duringthe winding of the blank around the mandrel I01.

The trimming mechanism is shown best in Figures 2 and 3, the mechanismbeing in its nor-- mal position in Figure 2, but being shown as revolved90 degrees out of its normal position in Figure 3, for the purpose ofclarity. This mechanism includes a shaft I43 carried in suitablebearings held by the arms 42 of the bracket H. The shaft carries a gearI43 on the outer end thereof which is in mesh with a similar gear I30carried by the shaft I03,this latter shaft driving the trimmingmechanism. On the forward end of the trimmer shaft I 43 is a; cuttingwheel I5I operating in conjunction with the hardened cap I24 on themandrel.

A hollow sleeve I32 is keyed to the trimmer Air and vacuum control Thecontrol means for alternately providing a suction and an air blast inthe mandrel I01 is bestseeninFiguresZ,12,13 and 14.

The rear end of the tube I3! is connected, as

at III, to a block I mounted on a pad I" seated on the bed plate ii. Thetube communicates inside the block with a transverse pe III which inturn communicates with a pair of spaced vertical es It! and I,respectively. The passage III communicates with a vacuum tube I OIconnected at one end to the block and at the other end to any suitablesource of vacuum. In similar manner, the passage Iil is in communicationwith an air pressure tube The block I" is internally boredlongitudinally thereof to accommodate a pair of spaced plungers Ill andI, respectively. These plungers are similar in construction, and each isurged outwardly by a coiled spring I" disposed in the respective bore inadvance of the plunger. The phmger III is provided with a verticalpassage I" therethrough for communication with the passage III in theblock, and the plunger I is provided with a similar passage I 61 forcommunication with the block e I OI.

Of course, these plungers function as valves,

and in the drawings the plunger Ill is shown in its innermost positionto establish communication between the tube I 3! leading to the mandreland the vacuum line I"; the plunger I 46 being retracted or in itsoutermost position to close communication between the tube Ill and theair pressure line III.

The plungers I63 and I are controlled by a pair of cams Ill and I09,respectively, both mounted upon the aforesaid main driving shaft 30.Adjacent each cam, a suitable bearing block "I is provided. Forcontacting the cam, each of the plungers I" and I is provided with awheel "I and I12,respectively, on the outer end thereof. It will benoted that the vacuum control cam III is provided with a cam surface I13in excess of half its circumference so that the vacuum necessary to holdthe container on the mandrel is present the major portion of the timethat the container is on the mandrel. 0n the other hand, the airpressure control cam I" is.

provided with a relatively short or narrow' cam surface I14 to providesubstantially momentary air pressure for the ejection of the container.

- Container-receiving unit inabove by numeral 46 includes a bracket I15bolted to the frame ll of the machine and provided with a pair ofoutstanding bosses I16 to adjustably hold a supporting rod I11. Attachedto this rod I11 is an arcuate supporting stirrup I10 welded orotherwisesecured to arecelving cylinder I 19. This cylinder is sopositioned that a finished container is blown directly from the mandrelI01 into the cylinder, and the cylinder is of such a size as to nicelyreceive the completed containers in stacked relationship. In the'upperrear portion thereof, the cylinder is provided with an elongated slot-II. therein, through which an operator may insert a finger to remove adesired number of finished cups through the open end of the cylinder. Atthe receiving end thereof, the cylinder is provided with a pair ofopposed toothed members Iii positioned so that their toothed edges arespaced apart a distance slightly less than the diameter of the mouth ofa container. Accordingly, when a container is blown into the cylinder,the upper rim thereof will flex slightly in passing-the members III andexpand behind certain of the teeth so that the container cannot leave thcylinder through theend which it enters.

Adjacent its forward end, the cylinder is provided with a slidablesleeve It! slotted on the underside thereof, as indicated at Illa(Figure 11) ,so that the stln'up I18 does not interfere with thereciprocation of the sleeve, but will, together with the inner edges ofthe members I ll, serve to limit the forward movement of the sleeve.

The sleeve carries a pair of spaced bosses I" projecting therefrom, andin the rearmost of these bosses, the end of a rod I I4 is threadedlyengaged, this rod'being reciprocable with the sleeve through a, bearingboss III (Figure 2) carried by the cylinder. Disposed around the rod Ibetween the boss I and a collar I 86 on the rod, is a coil spring I81normally urging the sleeve to its rearmost position, opposite to thatseen in Figure 11. Immediately in front of the boss I", the rod isprovided with a loose shock absorbing sleeve I 88 of rubber or someequivalent material.

At the forward end thereof, the sleeve carries a barb I" extendingradially inwardly sufliciently so that the larger margin of a containermust flex in passing over the barb when the container is blown into thecylinder. The mechanism is so timed that contemporaneously with theejection of a cup from the mandrel I01, the sleeve together with thebarb I89 is moved forwardly towards the oncoming cup against the actionof the spring I81, and when the moving force is released, the spring I81forcibly returns the sleeve to its rearmost position, thereby pullingthe received cup into the cylinder in stacked relationship with the cupspreviously received.

The mechanism for actuating the sleeve I82 includes a bell crank I90,pivoted as at I 8i on the upper end of the bracket I15. This bell crankis provided with an outstanding head I 92 disposed between the aforesaidbrackets I83 on the sleeve, and also a head I93 for engagement with anactuating cam I 94- carried on the outer end of the main drive shaft 30.This cam I 9| is provided with an oblique cam edge I 95 for periodicallypivoting the bell crank I to move the sleeve I82 against the action ofthe spring I81 to stack the cups and urge them towards the rear end ofthe receiving cylinder I19 in the manner above described.

\ Operation 4 In view of the detailed descriptions of th operation ofthe individual units given hereinabove, only a general operation of themachine need now be explained.

At the outset, a roll 2 of paper is mounted in the cradle 23 and thefree end of the stock is threaded through the machine up to the cuttingmechanism. A cut is made by this mechanism and the piece cut off thrownaway. The machine may thenbe started and operated until the roll givesout. In threading the stock strip through the machine, the set screw I2may be loosened to permit the downward shifting of the backing roller I3away from the glue applying wheel 6| until the paper is puttherebetween, and the bolt adjustment 54 permits a temporary dropping ofthe lower feeding roll 48 in order to insert the paper between theserolls.

When the machine is started, the feeding rolls 4'! and 48 pull the paperfrom the roll 2 through the machine. As it passes the glue applyingwheel 6|, spaced patches 5 of glue or other adhesive are applied to thestock strip as seen in Figure 15. The paper strip is then fed until theforward edge thereof is engaged between the forming mandrel I01 and thecone I I3, and preferably just after the paper is gripped by theseelements and held to the mandrel by the vacuum contemporaneouslyestablished by the cam I68, the cutter control cam 91 drops the carrier19 and severs a blank from the strip. This blank is wound around themandrel into container shape, the heater I" drying the adhesive, thetrimming cutter I5I trimming the excess margins from the blank duringthe winding operation, and as soon as the container is formed, thepressure control cam I69 provides air pressure to blow the finishedcontainer from the mandrel into the receiving cylinder I19. Just beforethe applica tion of the air pressure, the cone H3 is moved away fromengagement with the container. In the meanwhile, the cam I68 hasreleased its respective plunger I63 so that the vacuum has been cut off.Contemporaneously with the reception of a completed container by thecylinder I19, the sleeve I82 together with its barb I89 is reciprocatedso as to move the completed container towards the rear end of thereceiving cylinder.

The operation of the machine is very accurate and very rapid, it beingquite feasible with this machine to produce containers in excess of 100per minute. The timing arrangement of the machineis preferably such thatone revolution of the shaft 30 and accordingly one revolution of thefeeding rolls 41 and 48, is sufiicient to advance the stock stripsufficiently for the cutting of a container blank. On the other hand,the drive arrangement rotates the forming mandrel I01 at a'higher rateof speed. A satisfactory ,ratio between these parts is 4 revolutions ofthe mandrel to one revolution of the feeding rolls to produce acontainer.

An important feature of the invention resides in the fact that thecontinuous strip of stock is fed directly into the forming unitand isengaged between the mandrel and cone substantially at the same time ablank is severed from the strip. Accordingly, there is no opportunityfor the blank to move out of its proper position prior to the forming ofthe container.

From the foregoing, it will be apparent that I have provided acontainer-making machine which is relatively simple in construction,minimizes the waste of material, and which need utilize but a singlepair of feeding rollers to accurately produce containers at a high rateof speed.

I am aware that many changes may be made and numerous details ofconstruction may be varied through a wide range without departing fromthe principles of this invention, and I, therefore, do not purposelimiting the patent granted art.

- I claim as my'invention:

1. In a container making machine, a forming mandrel, a similarly shapedroller in such proximity thereto that a blank may be gripped therebetween, feeding means arranged to deliver a strip of stock directly tosaid mandrel and roller, driving means to continuously operate saidinandrel and roller at a greater speed than said feeding means, andcutting means between said feeding means and said mandrel arranged tosever a blank from said strip contemporaneously with the time when theforward end of said strip is gripped between the mandrel and roller. 7

2. The method of making a container, including substantiallycontinuously feeding a strip of stock into forming position, severing ablank from said stock contemporaneously with the arrival of the forwardedge of said strip at forming position, thereafter forming said blankinto container shape, and ejecting the formed blank from formingposition in time to begin another forming hereon otherwise than isnecessitated by the prior operation with the advancing edge of saidstrip.

3. The method of making a container, including feeding a strip of stockdirectly to a forming location, starting to form a container,contemporaneously severing a blank from said strip along a line of cuthaving a concave arcuate portion, thereafter completing the formingoperation, and contemporaneously trimming a margin from said blank alonga line of cut terminating intermediate the ends of said arcuate portion.

4. A container making machine wherein feeding means deliver stock toforming means which shape a container and forcibly eject it into astationary receiver for finished containers, characterized by areciprocable member adjacent the receiver having a barb so disposed thata container margin must flex in passing said bar during the ejectory'flight of the container, said member pushing the container back intothe re-' ceiver on a movement in that direction.

5. A container making machine wherein driving means actuate forming andejecting means which latter eject finished containers into a stationaryreceiver cylinder, characterized by a reciprocable element associatedwith said receiver and having a projection extending in the path ofejected containers so a portion of a container must flex during theejectory flight of the container to pass said element, and actuatingmeans connected to said driving means to operate said element tosuccessively urge containers towards the rear end of said cylinder.

6. A container making machine wherein continuously rotating formingmechanism successively shapes and forcibly ejects finished containersinto a receiving cylinder in'stacked relationship, characterized byratchet-toothed means associated with said cylinder and positioned toextend in the path of an ejected container sufficiently to cause amargin of the container to flex in passing thereby, and said cylinderbeing open-ended and having a slot therein to aid the removal of a stackof containers from the rear end of the cylinder.

'7. A container.making machine wherein forming mechanism successivelyforms andfforcibly throws oif finished containers into a receivermember, characterised by ratchet-toothed means positioned suflicientlyin the path of an ejected container to catch the flying container andcause amarginofthecontainertoflexinpassingthereby, and means forperiodically urging the received containers away fromthe receiving endof said member.

8. A container making machine wherein driving means operate formingmeans capable of forcibly ejecting a finished container into containerreceiving means, detent means associated with said receiving means anddisposed in the path of .an ejected container to catch the flyingcontainerand cause a flexing of a margin of the container in passingthereby, and pusher means operable by said driving means to periodicallyurge received containers towards the opposite end of said receivingmeans. 7

9. In a container making machine wherein driving means actuate formingmeans capable of forciby ejecting a finished container into containerreceiving means, detent means associated with said receiving means anddisposed in the path of an elected container causing a flexing of amargin of the container in passing thereby. ciprocable means arranged tourge received containers towards the opposite end of said receivingmeans, resilient means tending to hold said reciprocable means in onedirection, and cam means operable by said driving means to periodicallyactuate said reciprocable means against the action of said resilientmeans. I

10. In a container making machine wherein driving means continuouslyactuate forming mechanism arranged to form containers and forcibly ejectfinished containers into container receiving means, detent meansassociated with said receiving means to prevent containers leaving thereceiving end of said receiving means, and pusher means periodicallyactuated by said driving means to urge containers towards the oppositeend of said receiving means.

11. In a container making machine wherein driving means actuate formingmechanism arranged to form containers and forciby eject finishedcontainers into receiving means for holding finished containeradetentmeans associated with said receiving means to prevent containers leavingthe receiving end of said receiving means, and pusher means periodicallyactuated by said driving means to urge containers towards the oppositeend of said receiving means, said pusher means being actuatedperiodically by cam mechanism connected with another part of saidmechanism to be driven by said driving means.

12. In a cup making machine wherein feeding means advance a stripofstock from which cutting means sever blanks which are successivelyformed into cups and ejected into a receiving container, a reciprocablemember adjacent said container having a barb positioned in the path ofan ejected cup so that a cup margin must flex in passing said barb,means to operate said reciprocable member whereby said cup is pushedback into said container upon a movement of said member in the properdirection, and fixed ratchet means associated with the forward end ofsaid container with rearwardly disposed teeth also arranged to cause aflexing of a cup margin in passing thereby.

- 13. In a cup making machine wherein finished cups are successively andforcibly ejected by a blast of air into a receiving apparatus whichcatches and automatically stacks the cups in nested relationship,feeding means including a more pluralityofrollsforadvancingastripnfstock through the machine, gluing mechanism including anotched roll for applying spaced dabs of glue to the strip. certain ofsaid feeding rolls being shaped so as not to contact the applied dabs ofglue when the strip passes thereby, cutting means arranged to severblanks from said stripwiththelineofcutbetweensaiddabs of glue, formingmeans arranged to shape a blank into cup shape, andelector mechanism todischarge a cup from the forming means.

14.,In a machine of the character described,

forming means including a cup forming mandrel vforwardedgeofsaidstripisinpositiontobe engaged by said mandrel and saidpresser roll. 15. In a machine of the character described,

forming means including a cup forming mandreland a presser foil forforming a cup from a blank of flexible material, means associated withsaid mandrel to hold a part of a blank to be formed against the mandrel,said presser roll being movable axially to engage a blank on saidmandrel and movable out of engagement with the cup when formed to permitejection of the cup and the reception of a new blank. means associatedwithsaid mandrel to forcibly elect a finished cup therefrom, feedingmeans arranged to feed a stock strip directly between said mandrel andpresser roll, cutting means positioned and timed to sever a blank fromsaid strip when the forward edgeofsaidstripisinpositiontobeengaged bysaid mandrel and said presser roll, said cuttingmeansbeingshapedtoseversaidstockstrip transversely completelythereacross along a line other than straight, and said cutting meansbeing timed to sever the blank just prior to the start of the formingoperation.

16. In a machine of the character described, forming means including acup forming mandrel and a presser roll for forming a cup from a blank offlexible material, means associated with said mandrel to hold a part ofa blank to be formed against the mandrel, said presser roll beingmovable axially to engage'a blank on said mandrel and movable out ofengagement with the cup when formed to permit ejection of the cup andthe reception of a new blank, means associated with said mandrel toforcibly eject a finished cup therefrom, feeding means arranged to feeda stock strip directly between said mandrel and presser roll, gluingmeans in advance of said forming means to apply glue to said strip inspaced areas, and cutting means positioned and timed to sever a blankfrom said strip by severing the strip in the space between successiveglue areas when the forward end of said strip has entered between themandrel and presser roll.

1'1. In a machine for making conical paper cups, feeding meansarrangedto feed a strip of stock to a forming location, gluing meansarranged to apply spaced areas of glue to said strip, cutting meansarranged to successively sever blanks from the strip by cutting thestrip crosswise between successive glue areas along a line other thanstraight acres the strip, and a forming mandrel of conical shapepositioned adjacent the path of said stock stripat'the forming locationto grip the end of the strip and wind the blank into a cup having anapex substantially at an intermediate part of the leading edge of theblank.

18. In a machine for making conical paper cup feeding means arranged tofeed a strip of stock, gluing means arranged to apply spaced areas ofglue to said strip, cutting means arranged to successively sever blanksfrom the strip by cutting the strip crosswise-between successive glueareas along a line other than straight across the strip,.and a formingmandrel. of conical shape positioned adjacent the path of said stockstrip to receive a blank cut from the strip and wind the blank into acup having an apex substantially at an intermediate part of the leadingedge of the blank, said cutting means being timed to sever the stockstrip after the leading edge of the stock strip has reached the formingmandrel but prior to the forming operation, said forming mandreloperating at a higher speed than said feeding means.

19. The method of making a conical paper cup, which comprises feeding astock strip along a predetermined path directly into forming position,applying spaced areas of adhesive to said strip, successively cuttingsaid strip substantially between adjacent areas of glue substantiallytransversely and alonga line other than straight across said strip, eachsuchcut being made after the forward end of said stock strip has reachedthe forming position, and forming a 'conical cup from a blank by rollingthe blank with the cup apex substantially at an intermediate part of theleading edge. i

20. A container making machine wherein feeding means deliver stock toforming means which shape a container and forcibly eject it into areceiver for finished containers, characterized by a reciprocable memberadjacent the receiver having a barb so disposed that a container marginmust fiex in passing thereby, said member pushing the containerback intosaid receiver upon a movement towards the non-receiving end of thereceiver, and actuating means to operate said reciprocable memberconnected to the feeding means of the machine to operate in synchronismtherewith.

21. In a machine for making conical paper cups, a cone-shaped formingelement, a member in such proximity thereto that a blank may be grippedtherebetween, feeding means arranged to deliver a strip of stockdirectly to said element and said member, driving means to continuouslyoperate said forming element at a greater relative speed than saidfeeding means operate so that a container may be formed and dischargedprior to the arrival of the forward end of the oncoming stock strip atforming position, and cutting means timed to sever a conical cup blankfrom said strip contemporaneously with the time when the forward end ofthe strip is received by said forming element and said member.

22. In a machine for making conical paper cups, a conical-shaped formingelement, a mem--- ber in such proximity thereto that a blank may begripped therebetween, feeding means arranged to deliver a strip of stockdirectly to said element and said member, and cutting means timed tosevera conical cup blank from said strip contemporaneously with the timewhen the forward end of the strip is received by said forming elementand said member, said cutting means operating prior to the beginning ofthe actual folding operation and being shaped to sever the stripthereacross along a line other than straight across the strip and thusdefine an edge portion of the conical cup blank.

23. In a conical paper cup making machine, means for feeding forward acontinuous web of paper toward a cup-forming station, a substantiallyconical cup-forming mandrel member and a cooperable member at saidstation between which members the forward end of said web is fed andgrasped thereby before the paper going to make up the cup is cut intoits final shape, driven means for rotating said mandrel member to form acup thereon and means for cutting off anend section from said web whilesaid end is gripped by said members, saiddriven means winding said endsection of the web on said mandrel member into a cup having an apexsubstantially at an edge of said end section. I

24. In a conical paper cup making machine, means for feeding forward acontinuous web of paper toward a cup-forming station, a substantiallyconical cup-forming mandrel member and a cooperable member at saidstation between which members the forward end of said web is fed andgrasped thereby before the paper going to makeup the cup is cut into itsfinal shape, driven means for rotating said mandrel. member to form asingle-piece conical cup, thereon having an apex substantialb at an edgeofan end section of the web going to make up the cup, and means forcutting oif an end section of said web while said end is gripped by saidmembers, said driven means winding said end section of the web on saidmandrel member, and cutting means including a rotary cutter associatedwith said members and arranged to progressively cut the paper gripped bysaid members as the paper is wound on said mandrel member, said cuttingoperation defining the circular mouth edge of the cup.

25. In a conical paper cup making machine, means for, feeding forwardacontinuous strip of paper toward a cup-forming station, a cup-formingmandrel member and a cooperable member at saidstation for progressivelywinding paper cups, between which members the forward end of said stripis fed and grasped thereby before the single-piece blank is cut off, andcutting means including blank' cut of! means and means associatedwiththe cup forming member including a circular cutting edge on saidmandrel member for cutting the paper to define the circular mouth edgeof the cup, said mouth edge cutting taking place simultaneously andprogressively with the winding of said end section of said web on saidmandrel member into a cup with an apexial point substantially at an edgeof the paper being wound into a cup.

26. In a conical cup making machine including a cup forming mandrelmember and a cooperable member as well as means for feeding a continuousstrip of stock directly to said members, the improvement which comprisescutting means associated with said members for cutting the mouth end ofa pointed cup contemporaneously with the rolling of the cup into conicalshape with a closed point, and means for applying pressure to thepointed end of the cup to eject the cup from said mandrel member.

27. In a process of making a cone-shaped paper drinking cup having apointed apex wherein a forward end of a continuous strip of paper is fedto a cup-forming station, including a cup formingmember, the steps ofgripping the strip at said station by said member, and severing a singlesection of the strip going to make up the entire drinking cup having apointed apex wherein a forward end section of a continuous paper stripis supplied directly to a cup-forming station including a cup formingmember, the steps of gripping said end section at said station by saidmember, rolling said end section in said station into a cup having itsapex substantially at an inter-' mediate part of a leading edge of saidend section, and contemporaneously therewith cutting the paper beingrolled so as to define the mouth edge of said cup.

29. In a process of making a single-piece coneshaped paper drinking cuphaving a pointed apex, the steps of supplying a forward end section of acontinuous paper strip directly to a cup-forming station including a cupforming member, gripping said end section by said member at saidstation, rolling said end section in said station into a cup, andcontemporaneously therewith cutting the paper being rolled so as todefine the mouth edge of said cup, said cutting being effected by theact of rolling said end section into a conical cup with its apexialpoint substantially at an intermediate part of a leading edge of saidend section.

30. In a container making machine, feeding means arranged tocontinuously urge a stock strip forward along a predetermined path,cutting means, continuously operating forming means, and driving meansto actuate the forming means at a greater rate of speed than the feedingmeans operate, all said means being relatively timed so that the cuttingmeans operate immediately after the forward end of the stock strip hasreached the forming means but before the actual folding of the blankbegins.

31. The method of making a conical paper cup, including feeding asubstantially continuous strip of stock into forming position, and to acup forming member at said forming position, gripping the end of thestrip by said member, thereafter sever-' ing a blank from said stripsubstantially at the time the forward edge of the strip arrives atforming position, and forming the blank into a conical cup at saidforming position by rolling the blank into a pointed cone and trimmingthe mouth end thereof.

32. The improved process of making a conical paper drinking cup with theaid of a substantially conical shaped forming mandrel, which includesthe steps of feeding the forward end of a substantially continuous stripof stock into engagement with the forming mandrel, applying spacedpatches of adhesive to said strip while it is fed, severing a sectiongoing to make a cup from the leading part of said strip by cutting thestrip between adjacent patches of adhesive, said severing operationbeginning subsequentlyto the engagement of the end of the strip with theforming mandrel, and thereafter wrapping the section around the formingmandrel.

33. In a container making machine, container forming means arranged togrip the forward edge of a stock strip, feeding means arranged to feedasubstantially continuous stock strip into said forming means, andcutting mechanism arranged to sever a container blank from said stripafter the forward edge of the strip has been gripped by said formingmeans and prior to the forming operation.

34. In a container making machine, container forming mechanismcontaining gripping means, and feeding means arranged to advance asubstantially continuous stock strip directly into enmechanism timed tosever a container blank from said strip after said gripping means haveengaged the forward end of said strip but prior to the formingoperation.

35. In a conical cup making machine, a conical forming mandrel havinggripping means to grip the forward edge of a stock strip, feeding meansarranged to feed a stock strip directly into engagement with saidforming mandrel, gluing means arranged to apply all necessary glue inspaced patches of glue on said stock strip, and cutting means timed tosever a blank by cutting said strip between adjacent patches of glueafter the forward edge of the strip has been gripped by said mandrel,said forming mandrel rolling said blank into a conical cup with its apexsubstantially at an intermediate part of a leading edge of the blank.

36. In a container making machine, container forming mechanismcomprising a rotatable mandrel carrying gripping means and from which afinished cup is ejected, feeding means arranged to advance a'stock stripdirectly into engagement with said mandrel, and cutting means'timed tosever a blank from said strip after it has been gripped by the mandrelbut before the forming operation has begun.

37. In a container making machine, a forming mandrel of substantiallytrue conical shape rotatable about its own axis and from which afinished container is ejected, said mandrel carrying gripping means,feeding means arranged to advance the leading end of a stock stripdirectly into engagement by said gripping means, and cutting means timedto sever acomplete container blank from said strip after it has beengripped by the mandrel and before the forming operation begins.

38. 'Ihe method of making a conical paper cup with the aid of a formingmandrel, including the steps of feeding a substantially continuous stripof stock towards the mandrel, engaging the forward end of the strip withthe mandrel, then severing a blank from the leading portion of the stockstrip, and thereafter winding the blank around the mandrel into aconical cup.

39. A conical paper cup making machine wherein feeding mechanismdelivers stock to a rotatable substantially conical forming mandrelwhich shapes a cup and forcibly blows it off into a receiver for formedcontainers in nested relationship, characterized by ratchet toothedmeans associated with the receiver and located so the toothed partthereof extends into the path of a fiying ejected cup in a manner tocause the larger portion of said cup to flex in passing said toothedpart and expand behind a tooth to prevent the cup from rebounding out ofthe receiver, a reciprocable member adjacent the receiver having an Iinward projection disposed so the larger part of a flying ejectedcontainer must flex in passing thereby and expand therebehind, saidreciprocable member pushing the cup back into more ingagement with saidgripping means, and cutting timate nesting with previously received cupsand urging the stack of cups towards the non-receiving end of thereceiver upon a movement in that direction, and moving away fromreceived cups to permit the entry of a new cup upon a movement in theopposite direction, and actuating means for said reciprocable memberoperatively connected with the feeding mechanism to function insynchronlsm therewith.

40. The method of making a conical paper cup, which comprises feeding astrip of stock along a predetermined path, successively cutting saidstrip substantially transversely but along a line other than straightacross said strip to remove a blank having leading and trailing edgesembodying complemental arcs, one of which is convex and one of which isconcave, applying adhesive to the paper before commencing the forming ofthe cup, and forming a conical cup from a blank so severed by rollingthe blank with the cup apex at a substantially intermediate part of theleading edge and in a direction such that the blank is rolled from saidleading edge towards a portion of said convex arc.

41. The method of making a conical paper cup, which comprises feeding asubstantially continuous strip of stock along a predetermined path,transversely severing successive segments from the extremity of thecontinuous strip of paper by means of a series of repeated and identicalcuts embodying arcs curving in the same direction whereby blanks areformed each having leading and trailing edges embodying compiementalarcs, applying adhesive to the paper before commencing the forming ofthe cup, and successively forming conical cups by rolling each blank,with the cup apex at a substantially intermediate part of the leadingedge, progressively from one part of its leading edge towards anotherpart of the same leading edge.

WALTER E. AMBERG. .0

CERTIFICATE OF CORRECTION. Patent No. 2,205,515. June 1;, 191m.

NALIER E. AHBERG.

It is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: Page 1,first,

coiumn, line 35, after the word "container-making insert -machine--;page 2, first column, line 30, for "shock" read stock--; page 5, firstcolumn, line 141}, for "Caried" read Carried--; page 14., first column,line 14.6, for "threaded" read --threaded1y--; line 60, for"hereinafter" read -hereinabove page 7, second column, line 1414., claim1;, for "bar" read --barb--; page 10, first column, line 15, claim 28,for "cone-shaper" read -coneshaped--; and that the said Letters Patentshould be read with this correction therein that the same may conform tothe record of the case in the Patent Office.

Signed and sealed this 25rd day of July, A. D. 191+0.

Henry Van Arsdale, (Seal) Acting Commissioner of Patents.

